It is from Crash Course US history. It at 1 minute and 12 second. Here is the context:
Now, both parties realized that it was important to coordinate their electoral strategy to make sure the vice presedential candidate got at least one fewer electoral votes than the presidential candidate.
Would it mean the same if the host said ...candidate got at least one electoral vote fewer than...? What confuses me is the use of the word vote in its plural form.